Diablo Canyon Decommissioning Engagement Panel

Public Comments

DateApril 20, 2022
Decommissioning TopicSpent Fuel Storage
Comment / Suggestion:

Public comment presented during April 20, 2022 Engagement Panel Meeting:

KAYLENE WALKER:· Hi.· Kaylene Walker,
W-a-l-k-e-r.· (Indiscernible.)· I am familiar with
San Onofre, Holtec, and Orano system.· A couple of
questions.· I will just rapid fire the questions, and
then you can answer them as you will.
· · · · ·You said that the consideration of embedded
carbon parcels in a canister is not an issue of concern.
I think that should be looked into.· That would break
through a very thin chromium layer and potentially
create a pit corrosion problem.· I think it's worthwhile
looking at that.
· · · · ·Question:· Has your repair technology been
evaluated or approved by the NRC or ASME?· At
San Onofre, Holtec presented the repair technology, but
we found out then later that it had not been evaluated
or approved by NRC or ASME.
· · · · ·At San Onofre Orano got an exemption from
taking radiation readings at the outlet air vent.· Will
the outlet air vent radiation readings be gotten at this
· · · · ·A note to verify.· Cracked canisters have no
seismic rating.· Orano, I think in one of your slides
you claimed fuel retrievability.
· · · · ·I am wondering, do you actually mean fuel
retrievability or if this is an alternative definition
as in NRC's ISG 2, Revision 2, where they defended a
canister retrievability?
· · · · ·I am wondering what your fuel inspection method
is.· If you just do a video camera or if you actually do
a vacuum can sipping or in-mast sipping.· Is it -- you
know, what is your fuel inspection?· With a 50 kilowatt
heat load, that is a frightening heat load.
· · · · ·That is almost double the 30 kilowatt heat load
at San Onofre, and that is alarming for the problem that
could incur with the fuel, which is what we are storing,
the fuel could be (indiscernible) -- high-pressure
· · · · ·In the unlikely event of a canister failure, my
question is, Orano, do you plan to put a canister into a
overpacked cask? And if that is your plan, has
that been evaluated or approved or requested for
approval from the NRC.· Thank you very much.
· · · · ·MR. ANDERS:· Thank you.
· · · · ·KAYLENE WALKER:· These are serious questions
that the community -- those are serious questions that I
believe the community should be aware of these kind of
issues.· Thank you.

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